package cn.droidlover.xdroidmvp.view;

/**
 * 作者：李学伟
 * 日期：2018/6/6
 * 用途：
 */


import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.View;

import cn.droidlover.xdroidmvp.R;
import cn.droidlover.xdroidmvp.kit.NLog;


/**
 * This class is from the v7 samples of the Android SDK. It's not by me!
 * <p/>
 * See the license above for details.
 */
public class DividerItemDecoration extends RecyclerView.ItemDecoration {

    private int dividerHeight;
    private Paint dividerPaint;

    private static final int[] ATTRS = new int[]{
            android.R.attr.listDivider
    };

    public static final int HORIZONTAL_LIST = LinearLayoutManager.HORIZONTAL;

    public static final int VERTICAL_LIST = LinearLayoutManager.VERTICAL;


    private int mOrientation;

    public DividerItemDecoration(Context context, int orientation) {
        dividerPaint = new Paint();
        dividerPaint.setColor(Color.rgb(245, 245, 245));
        dividerHeight = context.getResources().getDimensionPixelSize(R.dimen.listitempading);
        setOrientation(orientation);
    }


    public void setOrientation(int orientation) {
        if (orientation != HORIZONTAL_LIST && orientation != VERTICAL_LIST) {
            throw new IllegalArgumentException("invalid orientation");
        }
        mOrientation = orientation;
    }

    @Override
    public void onDraw(Canvas c, RecyclerView parent) {
        super.onDraw(c, parent);
        if (mOrientation == VERTICAL_LIST) {
            drawVertical(c, parent);
        } else {
            drawHorizontal(c, parent);
        }

    }


    public void drawVertical(Canvas c, RecyclerView parent) {
        final int left = parent.getPaddingLeft();
        final int right = parent.getWidth() - parent.getPaddingRight();

        final int childCount = parent.getChildCount();
        for (int i = 0; i < childCount; i++) {
            final View child = parent.getChildAt(i);
            RecyclerView v = new RecyclerView(parent.getContext());
            final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child
                    .getLayoutParams();
            final int top = child.getBottom() + params.bottomMargin;
            final int bottom = top + dividerHeight;
            c.drawRect(left, top, right, bottom, dividerPaint);
        }
    }

    public void drawHorizontal(Canvas c, RecyclerView parent) {
        int left = parent.getPaddingLeft();
        int right = parent.getWidth() - parent.getPaddingRight();
        final int childCount = parent.getChildCount();
        for (int i = 0; i < childCount; i++) {
            View view = parent.getChildAt(i);
            float top = view.getBottom();
            float bottom = view.getBottom() + dividerHeight;
            c.drawRect(left, top, right, bottom, dividerPaint);
        }
    }

//    @Override
//    public void getItemOffsets(Rect outRect, int itemPosition, RecyclerView parent) {
//        if (mOrientation == VERTICAL_LIST) {
//            outRect.set(dividerHeight, dividerHeight, dividerHeight, 0);
//        } else {
//            int right = parent.getWidth() - parent.getPaddingRight();
//            outRect.set(0, 0, right, 0);
//        }
//    }

//    @Override
//    public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
//        NLog.e("DividerItemDecoration", "outRect.left" + outRect.left + " outRect.top" + outRect.top);
//        if (mOrientation == VERTICAL_LIST) {
//            outRect.set(dividerHeight, dividerHeight, dividerHeight, 0);
//        } else {
//            int right = parent.getWidth() - parent.getPaddingRight();
//            outRect.set(0, 0, right, 0);
//        }
//    }
}